Download Hot Dog Single Port Controller IFU

Patient Warming System
Controller Models WC0X & V0XX
User Manual
In USA - Manufactured by:
Hot Dog USA
7536 Washington Ave South
Eden Prairie, MN 55344 USA
TEL 888.439.2767
www.HotDog-USA.com
Outside USA - Manufactured by:
Hot Dog International LLC
6581 City West Parkway
Eden Prairie, MN 55344 USA
TEL 952.465.3500
FAX 952.465.3501
www.hotdogwarming.com
EU Authorized Representative/
Authorized Service Representative:
Emergo Europe
Molenstraat 15
2513 BH The Hague
The Netherlands
TEL (31) (0) 70 345-8570
FAX (31) (0) 70 346-7299
User Manual: Hot DogTM Controller Models WC0X & V0XX
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Contents
Introduction ......................................................................................................................... 3 Device Description .......................................................................................................... 3 Indications for Use........................................................................................................... 3 Contraindications ............................................................................................................. 3 Warnings ............................................................................................................................. 4 Cautions .............................................................................................................................. 4 Precautions .......................................................................................................................... 4 Proper Use and Maintenance .............................................................................................. 5 Initial Setup & Assembly .................................................................................................... 5 Contents ........................................................................................................................... 5 Mounting the Hot Dog Controller to an IV Pole ............................................................. 5 Control Panel Features & Operating Modes.................................................................... 7 Alarms ............................................................................................................................. 8 Instructions for Use ............................................................................................................. 9 Maintenance & Testing ..................................................................................................... 10 Testing of Indicator Light Function............................................................................... 10 Cleaning—General ........................................................................................................ 11 Cleaning—Controller .................................................................................................... 11 Cleaning—Warming Devices ........................................................................................ 12 Technical Support & Customer Service ........................................................................... 12 Definition of Symbols ....................................................................................................... 13 Accessory Part Numbers ................................................................................................... 13 Specifications .................................................................................................................... 14 Electromagnetic Compatibility (EMC) ............................................................................. 16 User Manual: Hot DogTM Controller Models WC0X & V0XX
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INTRODUCTION
Device Description
The Hot Dog Patient Warming System consists of the Hot Dog Controller, reusable warming
devices (e.g., Warming Blankets) and accessories. This manual includes maintenance instructions
and specifications for the Hot Dog Controller Models WC0X and V0XX. For information about
Hot Dog warming devices and accessories, refer to the “User Manual” provided with each
device/accessory.
The Hot Dog Controller is designed to help maintain normothermia in patients before, during, and
after surgical procedures and to help prevent unintended hypothermia. The system is powered and
controlled by an electronic control unit. Warming devices (e.g., blankets) are powered at low
voltage, ensuring safety for patients and operators. Warming temperatures are controlled
automatically to user-selected levels, and over-temperature safety shut-offs are integrated into the
controller as well as into each warming device.
The Hot Dog Controller can be placed on a flat surface, mounted on an IV pole, or suspended
from the OR table/gurney rail using optional hooks. The Hot Dog Patient Warming System can
be operated continuously to maintain uniform heat over the patient. It is the responsibility of the
user to determine whether warming is appropriate for each individual patient. The Hot Dog
Patient Warming System should not be used when clinical considerations indicate that warming
of the patient is not advisable.
Indications for Use
The Hot Dog Patient Warming System is intended to prevent or treat hypothermia and to provide
warmth to patients. The Hot Dog Patient Warming System should be used in circumstances in
which patients may not maintain a state of normothermia. The System is intended primarily for
use in hospitals and surgical centers including without limitation operating, recovery, and
emergency rooms and on medical/surgical floors.
Contraindications
•
DO NOT warm patients during aortic cross-clamping; thermal injury may result.
•
DO NOT warm patients with ischemic or non-perfused limbs; thermal injury may result.
•
DO NOT warm patients receiving transdermal medication; increased drug delivery may
occur.
User Manual: Hot DogTM Controller Models WC0X & V0XX
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WARNINGS
General
•
EXPLOSION HAZARD – DO NOT use the Hot Dog Patient Warming System in the
presence of flammable anesthetics or highly oxygen-enriched environments such as
hyperbaric chambers, oxygen tents, etc.
•
Caution should be taken when using electric warming devices with HF surgical instruments
or endocardial catheters in respect to potential equalization.
•
Inspect Hot Dog components prior to use for signs of damage or excessive wear such as
cuts, holes, or loose electrical connections. If signs of wear are evident, do not use the
product until it is inspected by technical staff.
•
DO NOT continue to use the Hot Dog Patient Warming System if the over temperature
indicator and/or alarm continue to sound after reset. See alarm section of this manual.
Warming Blanket
•
DO NOT place Hot Dog Warming Blankets under the patient. The Warming Mattress and
disposable sheets are the only accessories designed for use under the patient.
Accessories and Other Equipment
•
Accessories and cables other than those specified in the User Manual may result in increased
emissions or decreased immunity of the Hot Dog Patient Warming system.
•
The Hot Dog Patient Warming System should not be used adjacent to or stacked with other
equipment. If adjacent or stacked use is necessary, carefully observe the Hot Dog Patient
Warming System to verify that it operates normally in this non-recommended configuration.
CAUTIONS
Federal law (USA) restricts this device to sale by or on the order of a licensed healthcare
professional.
PRECAUTIONS
•
Use under the direct supervision of a clinician.
•
Monitor the patient’s vital signs regularly during warming according to institutional protocol.
If vital sign instability occurs, notify the clinician.
•
Care should be taken when using multiple warming methods.
•
The risk of skin irritation caused by pooling of surgical prep solutions under the patient may
increase with warming; ensure that surgical prep solution instructions for use are followed.
User Manual: Hot DogTM Controller Models WC0X & V0XX
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PROPER USE AND MAINTENANCE
Do not open the Hot Dog Controller. There are no user serviceable parts. If service is required,
contact Technical Support (see page 12). The manufacturer assumes no responsibility for the
reliability, performance, or safety of the Hot Dog Patient Warming System if the following events
occur:
•
The Controller is disassembled or serviced by an unauthorized person.
•
The patient warming system components are used in a manner other than described in the
User Manuals.
•
The Controller is installed in an environment that does not meet the appropriate electrical and
grounding requirements.
•
The Controller is grounded and should not be attached to un-grounded tables intended for use
with a hyfrecator or equivalent devices.
INITIAL SETUP & ASSEMBLY
Contents
The following components are included in the Hot Dog Controller box:
•
•
•
•
•
1—Hot Dog Controller (Model WC0X or V0XX)
1—IV pole adapter and mounting hardware
1—Mains power cord
1—CD containing User Manual and Service Manual
1—Hot Dog Warming Blanket Cable (P/N A101)
Reusable Hot Dog accessories (e.g., Warming Blankets, Warming Mattress, connecting cables,
OR table/gurney rail hooks with mounting hardware) and Hot Dog Disposable Sheets are sold
separately.
Mounting the Hot Dog Controller to an IV Pole
To mount the Hot Dog Controller to an IV pole, place the Controller IV pole adapter around the
IV pole and turn the clamp handle clockwise until securely tightened (Figure 2). To remove the
Controller from the IV pole, turn the clamp handle counterclockwise until the unit releases.
Caution
To prevent the IV pole from tipping, the Controller must be attached at a height that provides
stability. It is recommended to use an IV pole with a minimum wheelbase radius of 35.6 cm (14
in) and to mount the Controller no higher than 112 cm (44 in) from the floor. Failure to properly
mount the Controller may result in IV pole tipping, catheter site trauma, and patient injury.
User Manual: Hot DogTM Controller Models WC0X & V0XX
Figure 1: Hot Dog Controller Mounted on an IV Pole
The Controller may also be suspended from the OR table/gurney rail using optional hooks
(Figure 3).
Figure 2: Optional OR Table/Gurney Rail Hooks
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User Manual: Hot DogTM Controller Models WC0X & V0XX
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Control Panel Features & Operating Modes
Figure 3: Hot Dog Model WC0X & V0XX Controls
Mains Power Switch / ON Power Indicator
When the Hot Dog Controller is plugged into an electrical outlet and the Mains Power Switch on
the back of the Controller is turned ON, all displays will illuminate briefly and the Controller will
beep. The Mains Power ON Light will illuminate and the Controller will remain idle until a
warming device is plugged in. When the unit is ON and idle (i.e., no Temperature Setting Lights
are illuminated), no power is applied to the warming device and no alarm conditions are
indicated.
User Manual: Hot DogTM Controller Models WC0X & V0XX
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Temperature Adjust Button / Temperature Setting Lights
Press the Temperature Adjust Button until the desired high (43°C), medium (40°C), or low
(37°C) temperature is selected, as indicated by the illuminated Temperature Setting light. The
designated warming temperature will be reached within 5 minutes.
Temp in Range Light
The green Temperature in Range light will illuminate when the temperature of the Warming
Blanket is ± 1°C of the selected temperature setting.
Port A
Port A should only be used for connection to a Hot Dog Warming Blanket. When a Warming
Blanket is plugged into the Controller, an audible beep indicates that the control and over
temperature sensors (safety device) are present and functioning properly and the device is ready
for use.
Port B
Port B is a 48V output for future approved Hot Dog accessories.
Alarms
Alarm Port A
If the Warming Blanket temperature exceeds one degree above set point or other fault conditions
exist, an audible alarm sounds and the Alarm Port A Light illuminates red. The Controller will
automatically discontinue power to the Warming Blanket. When the operating temperature falls
to within 1ºC of the selected set point, the alarm will shut off and normal function will be
restored. If the Alarm Port A Light illuminates steadily and the alarm continues to sound, turn the
Mains Power Switch to the OFF position and disconnect the Warming Blanket from the
Controller.
•
If Alarm Port A occurs when connecting a Warming Blanket to the Controller, disconnect the
Warming Blanket and replace it with another Warming Blanket.
Alarm Port B
If the accessory attached to Port B exceeds the pre-set current limit, an audible alarm sounds and
the Alarm Port B Light illuminates red. Power is removed from the port. Disconnect the
accessory from Port B to reset the alarm.
•
If Alarm Port B occurs when connecting an accessory to the Controller, disconnect the
accessory and replace it with another accessory.
•
If Alarm Port B occurs during use and the Alarm Port B Light illuminates steadily,
disconnect the accessory and replace with another accessory.
Refer to the Service Manual for troubleshooting procedures.
User Manual: Hot DogTM Controller Models WC0X & V0XX
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INSTRUCTIONS FOR USE
The instructions below describe how to operate the Controller Models WC0X and V0XX.
For information about Hot Dog warming devices and accessories, refer to the User
Manual provided with each device/accessory.
1. Mount the Hot Dog Controller on an IV pole or the OR table/gurney rail (refer to
page 5), or place the device on a flat, horizontal surface.
2. Insert the Hot Dog Controller power plug into a properly grounded hospital grade
electrical outlet.
Note: The Controller is grounded and should not be attached to un‐grounded tables intended for use with a hyfrecator or equivalent devices. 3. Turn the Mains Power Switch to ON and ensure that the green Mains Power ON
Light stays illuminated after the start up sequence.
4. Position and secure the Hot Dog warming device (e.g., Warming Blanket) following
instructions in the User Manual provided with the device.
5. Insert the warming device connecting cable into the proper port on the Controller.
Controller Port Warming Device A Warming Blanket B Hot Dog accessories Note: When the connecting cable is inserted into the Controller, an audible beep indicates that the control sensor and over temperature thermistor are present and functioning properly. 6. Press the Temperature Adjust button until the desired high (43°C), medium (40°C), or
low (37°C) temperature is set, as indicated by the Temperature Setting light. The
designated warming temperature will be reached within 3 to 5 minutes, as indicated
by illumination of the green Temperature in Range light.
7. Monitor the patient’s temperature regularly. Adjust the temperature setting of the Hot
Dog Controller as necessary to maintain the desired patient temperature.
8. When patient warming therapy is complete, turn the Mains Power Switch to OFF.
9. After use, disconnect the Hot Dog Controller from the electrical outlet.
10. Discard disposable accessories following standard hospital procedure. Clean the
reusable warming device as instructed in the User Manual provided with the device.
User Manual: Hot DogTM Controller Models WC0X & V0XX
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MAINTENANCE & TESTING
Testing of Indicator Light Function
Frequency
This test should be completed upon initial equipment check-in and once every 12 months (or
more frequently if required by hospital guidelines).
Method
1. Insert the Hot Dog Controller power plug into a properly grounded hospital grade electrical
outlet and confirm that NO cables or devices are connected to any of the ports.
2. Turn the Mains Power Switch to ON and observe for the following proper start-up sequence:
a. All lights illuminate briefly.
b. The Mains Power ON light remains illuminated while the other lights illuminate one by
one in the following order:
1. Temperature in Range
2. Alarm A
3. Alarm B
4. 43°
5. 40°
6. 37°
c. All of the lights will illuminate simultaneously, and then the unit will emit an audible
tone.
d. After the sequence completes, only the Mains Power ON Light remains illuminated.
3. If this sequence varies or is incomplete, contact Technical Support (see page 12).
User Manual: Hot DogTM Controller Models WC0X & V0XX
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Cleaning—General
Warnings
•
DO NOT use a dripping wet cloth and DO NOT immerse Hot Dog components in liquid.
Moisture will damage the components, and thermal injury may result.
Precautions
•
DO NOT use pure harsh solvents (e.g., MEK, acetone, etc.) to clean Hot Dog components.
Solvents may damage plastic parts, labeling and product finish.
•
DO NOT use high-level disinfectants (e.g., gluteraldehyde, peracetic acid). The U.S. Centers
for Disease Control (CDC) recommends against the use of high level disinfectants for
cleaning environmental surfaces that may contact the patient since the chemicals are highly
toxic.
•
DO NOT spray cleaning solutions into electrical connectors.
Recommended cleaners
Alcohol-based disinfectants are easiest to use since they are fast-acting and can be either sprayed
or wiped on. The following list of alcohol-based cleaners is provided for reference only and is not
an endorsement of the manufacturers or their cleaning products: Ecolab (Incidin Liquid, Incides
N, Incidin Foam, Incidin Sun, Mikro-Bak III), Merz (Pursept-A Xpress, Pursept Foam, MucocitA Economy) and Lysoform (Aerodesin 2000, Lysoform Spray).
Other cleaners that have been tested and are compatible with the outer surfaces of Hot Dog
components include sodium hypochlorite (diluted bleach), phenolic germicidal detergent
quaternary ammonium detergent and accelerated hydrogen peroxide (e.g., Virox). Cleaners that
contain iodine may cause surface discoloration and are therefore NOT recommended for routine
cleaning.
Cleaning—Controller
Frequency
As needed
Tools/Equipment
•
•
•
Sponge or soft cloth
Mild detergent or anti-microbial spray
Dry soft cloth
Method
1. Disconnect the Controller from the power source before cleaning.
2. Wipe unit with moistened sponge or soft cloth; avoid pushing fluids into any openings.
3. Dry with a separate soft cloth.
User Manual: Hot DogTM Controller Models WC0X & V0XX
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Cleaning—Warming Devices
Frequency
Clean between patient use and when the warming device appears soiled.
Method
Clean the warming devices following protocols for non-critical medical devices that may contact
intact skin. Examples of similar devices are blood pressure cuffs, exam table covers, operating
room table pads and surgical supports. Cleaning steps are described in the User Manual
provided with the warming device. Note that the cleaning instructions are general
recommendations and are not meant to replace hospital-specific cleaning protocols.
TECHNICAL SUPPORT & CUSTOMER SERVICE
Please have the serial number of your Hot Dog Controller when you call for technical support.
The serial number is located on the back of the Controller. If it is necessary to return the
Controller for service or repair, contact your local supplier or sales representative.
USA Outside USA Hot Dog USA 7536 Washington Ave South Eden Prairie, MN 55344 USA TEL 888.439.2767 www.HotDog-USA.com Hot Dog International LLC
6581 City West Parkway Eden Prairie, MN 55344 USA TEL 952.465.3500 FAX 952.465.3501 www.hotdogwarming.com User Manual: Hot DogTM Controller Models WC0X & V0XX
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DEFINITION OF PRODUCT SYMBOLS
Do Not Place Under Patient Mains Power On Indicator This Side Up This Side Down Alarm Heating Area Attention, consult accompanying documents Reference Number BF Patient Applied Part according to IEC60601‐1. Serial Number Temperature in Range Transport and storage temperature range Lot Number Manufacture Date Temperature Adjustment Transport and storage humidity range Keep Dry EU Authorized Representative Equipotential Temperature Sensor Fuse Return to Authorized Representative Conforms to European Medical Device Directive 93/42/EEC Medical Equipment Classified by Intertek Testing Services NA Inc. with respect to electric shock, fire, and mechanical hazards only, in accordance with UL 60601‐1. Classified under the Medical Device Directive (93/42/EEC) as a Class IIb device. ACCESSORY PART NUMBERS
The following cable part numbers are used with the Hot Dog Patient Warming System:
Part Number Description A101 Hot Dog Warming Blankets Cable, 4m (13ft) User Manual: Hot DogTM Controller Models WC0X & V0XX
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SPECIFICATIONS
Physical Characteristics Dimensions 29.21 cm high x 13.97 cm deep x 19.69 cm wide 11.5” high x 5.5” deep x 7.75” wide Weight 3.6 kg (8.0 lb) Mounting Can be clamped to an IV pole Recommended Operating Environment 15°C to 25°C Temperature Control Micro‐processor Operating Temperatures Average temperature at the Warming Blanket: Temperature Characteristics High 43° + 1.0°C 109.4° + 1.8°F Medium 40° + 1.0°C 104° + 1.8°F Low 37° + 1.0°C 98.6° + 1.8°F Safety System Primary Over‐temp Alarm High‐Alarm sounds at 44°C + 1°C Secondary Over‐temp Alarm Independent electronic circuit shuts the heater off if the Warming Blanket temperature reaches 46°C + 1°C. Over‐current Monitoring - Port A - Port B 12 amps max. 1.7 amps max. Over‐current Protection Dual input fused lines. Leakage Current Meets UL 2601‐1 and IEC 60601‐1 requirements for Class I, Type BF equipment. Power Consumption Peak 580 W Power Cord 4.6 m (15 ft.) Device Ratings Input: 100‐240 VAC, 50/60 Hz, 600VA Output A: 48 VDC, 500 VA Max Output B: 48 VDC, 80 VA Max Fuses T6.3 Amp, 250V (2 x 5x20mm) Certifications IEC 60601‐1; EN 60601‐1‐2; UL 60601‐1; CAN/CSA‐
C22.2, No. 601.1, EN 55011 Electrical Characteristics User Manual: Hot DogTM Controller Models WC0X & V0XX
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SPECIFICATIONS (cont’d)
Classification Classified under IEC 60601‐1 Guidelines (and other national versions of the Guidelines) as Class I, Type BF, Ordinary equipment, Continuous operation. Not suitable for use in presence of flammable anesthetic mixtures with air or with oxygen or nitrous oxide. Classified by Intertek Testing Services NA Inc. with respect to electric shock, fire, and mechanical hazards only, in accordance with UL 60601‐1. Classified under the Medical Device Directive (93/42/EEC) as a Class IIb device. Classified under Canadian Medical Device Regulation as Class II. Diagnostics A qualified technician can perform general system testing. The Controller has no user serviceable parts. Transport/Storage Temperature: ‐20°C to 60°C Humidity: 20% to 80% Keep Dry Important Information This device complies with the EMC requirements according to IEC 60601‐1‐2. Radio transmitting equipment, cellular phones, etc. shall not be used in the close proximity of the device since this could influence the performances of the device. Particular precaution must be considered during use of strong emission sources such as High Frequency surgical equipment and similar so that, e.g., the HF‐cables are not routed on or near the device. If in doubt, contact a qualified technician or your local representative. User Manual: Hot DogTM Controller Models WC0X & V0XX
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ELECTROMAGNETIC COMPATIBILITY (EMC)
The Hot Dog Patient Warming System requires special precautions regarding EMC and must be
installed and put into service according to the EMC information provided in this User Manual.
Warning
•
Use of accessories and cables other than those specified may result in increased emissions or decreased immunity of the Hot Dog Patient Warming System. •
The Hot Dog Patient Warming System should not be used adjacent to or stacked with other equipment. If adjacent or stacked use is necessary, carefully observe the Hot Dog Patient Warming System to verify that it operates normally in this configuration. Guidance and Manufacturer’s Declaration – Electromagnetic Emissions The Hot Dog™ Patient Warming System is intended for use in the electromagnetic environment specified below. The customer or user of the Hot Dog Patient Warming System should assure that it is used in such an environment. Emissions test Compliance Electromagnetic Environment – Guidance RF emissions, CISPR 11 Group 1 The Hot Dog Patient Warming System uses RF energy only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment. RF emissions, CISPR 11 Class A Harmonic emissions, IEC 61000‐3‐2 Class A Voltage fluctuations/ flicker emissions, IEC 61000‐3‐3 Complies The Hot Dog Patient Warming System is suitable for use in all establishments other than domestic and those directly connected to the public low‐voltage power supply network that supplies buildings used for domestic purposes. User Manual: Hot DogTM Controller Models WC0X & V0XX
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Guidance and Manufacturer’s Declaration – Electromagnetic Immunity The Hot Dog™ Patient Warming System is intended for use in the electromagnetic environment specified below. The customer or the user of the Hot Dog Patient Warming System should assure that it is used in such an environment. Immunity Test IEC 60601 Test Level Compliance Level Electromagnetic Environment – Guidance Electrostatic discharge (ESD) IEC 61000‐4‐2 ±6 kV contact ±8 kV air ±6 kV contact ±8 kV air Floors should be wood, concrete or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30 %. Electrical fast transient/burst IEC 61000‐4‐4 ±2 kV for power supply lines ±1 kV for input/output lines ±2 kV for power supply lines ±1 kV for input/output lines Mains power quality should be that of a typical commercial or hospital environment. Surge IEC 61000‐4‐5 ±1 kV line(s) to line(s) ±2 kV line(s) to earth ±1 kV line(s) to line(s) ±2 kV line(s) to earth Mains power quality should be that of a typical commercial or hospital environment. Voltage dips, short interruptions and voltage variations on power supply input lines IEC 61000‐4‐11 <5 % UT (>95 % dip in UT) for 0,5 cycle 40 % UT (60 % dip in UT) for 5 cycles 70 % UT (30 % dip in UT) for 25 cycles <5 % UT (>95 % dip in UT) for 5 sec <5 % UT (>95 % dip in UT) for 0,5 cycle 40 % UT (60 % dip in UT) for 5 cycles 70 % UT (30 % dip in UT) for 25 cycles <5 % UT (>95 % dip in UT) for 5 sec Mains power quality should be that of a typical commercial or hospital environment. If the user of the Hot Dog Patient Warming System requires continued operation during power mains interruptions, it is recommended that the Hot Dog Patient Warming System be powered from an uninterruptible power supply or a battery. Power frequency 50/60 Hz) magnetic field IEC 61000‐4‐8 3 A/m 3 A/m Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment. NOTE UT is the a.c. mains voltage prior to application of the test level. User Manual: Hot DogTM Controller Models WC0X & V0XX
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Guidance and Manufacturer’s Declaration – Electromagnetic Immunity (cont’d) The Hot Dog™ Patient Warming System is intended for use in the electromagnetic environment specified below. The customer or the user of the Hot Dog Patient Warming System should assure that it is used in such an environment. Immunity Test Conducted RF IEC 61000‐4‐6 Radiated RF IEC 61000‐4‐3 IEC 60601 Test Level 3 Vrms 150 kHz to 80 MHz 10 V/m 80 MHz to 2,5 GHz Compliance Level 3 V 10 V/m Electromagnetic Environment – Guidance Portable and mobile RF communications equipment should be used no closer to any part of the Hot Dog Patient Warming System, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter. Recommended separation distance d = 1, 2 P d = 0,35 P 80 MHz to 800 MHz d = 0,7 P 800 MHz to 2,5 GHz where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in metres (m). Field strengths from fixed RF transmitters, as a
determined by an electromagnetic site survey, should be less than the compliance level in each frequency range.b Interference may occur in the vicinity of equipment marked with the following symbol: NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies. NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people. a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the Hot Dog Patient Warming System is used exceeds the applicable RF compliance level above, the Hot Dog Patient Warming System should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the Hot Dog Patient Warming System. b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m. User Manual: Hot DogTM Controller Models WC0X & V0XX
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Recommended separation distances between portable and mobile RF communications equipment and the Hot Dog Patient Warming System
The Hot DogTM Patient Warming System is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the Hot Dog Patient Warming System can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the Hot Dog Patient Warming System as recommended below, according to the maximum output power of the communications equipment.
Separation distance according to frequency of transmitter m Rated maximum output power of transmitter W 150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2,5 GHz d = 1, 2 P d = 0,35 P d = 0, 7 P 0,01 0,12 0,04 0,07 0,1 0,37 0,11 0,22 1 1,2 0,35 0,70 10 3,7 1,1 2,2 100 12 3,5 7,0 For transmitters rated at a maximum output power not listed above, the recommended separation distance d in metres (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies. NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people. Hot Dog is a trademark of Hot Dog International LLC, registered in the U.S. Patent & Trademark Office. Patents pending.
© 2010 Hot Dog International LLC. All rights reserved.
P/N 2293EN Revision A (05/2010)